Osa climate

Osa Weather in April

NASA POWER reanalysis for the half-degree grid cell around Osa, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from -1°C on April 1 to 11°C on April 30, and lows from -7°C to 1°C. Normal precipitation for the month is 51 mm over about 9 wet days.

April day by day

The normal high and low for each date, in °C.

Normal daily high and low temperature at Osa, in °C, with the record for each date.-20-100102030151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

April at a glance

Average high
5°C
Average low
-3°C
Precipitation
51 mm
Reanalysis high
21°CApr 29, 2001
Reanalysis low
-20°CApr 2, 2002
Daylight
13 h 10 min to 15 h 28 min
Cloud cover
64%
Humidity
90%
Dew point
-1°C
Wind
13.0 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowReanalysis highReanalysis lowChance wet
Apr 1-1°C-7°C2°C 2009-17°C 200235%
Apr 2-1°C-7°C4°C 2009-20°C 200234%
Apr 30°C-6°C1°C 1995-19°C 200234%
Apr 40°C-6°C2°C 1995-15°C 200534%
Apr 50°C-6°C2°C 1995-17°C 200533%
Apr 60°C-5°C4°C 1995-14°C 199833%
Apr 71°C-5°C3°C 2008-14°C 199933%
Apr 81°C-5°C5°C 1995-15°C 199932%
Apr 91°C-4°C9°C 2008-11°C 200431%
Apr 102°C-4°C13°C 2008-11°C 201432%
Apr 112°C-4°C16°C 2008-17°C 201431%
Apr 123°C-4°C16°C 1995-10°C 201431%
Apr 133°C-3°C16°C 1995-13°C 199832%
Apr 144°C-3°C15°C 1995-13°C 199833%
Apr 155°C-3°C15°C 1995-12°C 199833%
Apr 165°C-2°C15°C 2012-15°C 199835%
Apr 176°C-2°C16°C 2012-10°C 199837%
Apr 186°C-2°C20°C 2012-15°C 199837%
Apr 197°C-2°C17°C 2012-17°C 199837%
Apr 207°C-1°C18°C 1995-14°C 199837%
Apr 217°C-1°C19°C 1995-14°C 200437%
Apr 228°C-1°C21°C 1995-9°C 200437%
Apr 238°C-1°C20°C 2012-10°C 200437%
Apr 249°C-1°C19°C 2012-12°C 200438%
Apr 259°C0°C18°C 2000-10°C 200438%
Apr 2610°C0°C18°C 2012-11°C 200439%
Apr 2710°C0°C21°C 2001-9°C 199640%
Apr 2810°C1°C21°C 2001-6°C 200439%
Apr 2911°C1°C21°C 2001-7°C 201938%
Apr 3011°C1°C20°C 2015-8°C 201938%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Osa, in percent.0102030401102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+5).

April 1
sunrise 6:48 AM, sunset 7:58 PM
April 30
sunrise 5:32 AM, sunset 9:00 PM

Every day of April: sun and moon

Other months

Sources

Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.